In February 1996, McCrudden began a trading pool known as the
Hybrid Fund [it was part of MAAM, his larger fund]. The Fund
began with approximately $200,000 and grew to about $700,000 -
$800,000 by June 1996. During that month, the Fund lost
about $350,000 on copper trades.

Around August 1996, McCrudden learned that Sumitomo Bank etc were
being sued for alleged manipulation of the copper market. [He
hopped on the bandwagon, became a lead class plaintiff, and hoped
to recover $2-$3 million.]

[The fund lost another $900,000 in September and October 1996,
but never revealed the losses. Instead, he counted the
amount he thought he'd recover from the lawsuit against Sumitomo
as part of his assets.]

By June 1997, McCrudden realized that the Sumitomo litigation
would take much longer than he anticipated, and that he could no
longer avoid disclosing the fund's situation. He notified
investors in August 1997 that the Fund was unable to continue due
to large trading losses...

In May 2002, McCrudden was indicted in the USDC and
charged with multiple counts of mail fraud. The conduct
underlying the indictment was McCrudden's preparation of monthly
statements for Fund customers that falsely inflated the true
value of their investment. The same month he was
indicted, the Fund was awarded $756,000 from the Sumo litigation.
A subsequent award raised the recovery to about $800,000...

During McCrudden's six-day trial in September 2003, the
prosecutor presented 16 witnesses, including the Fund
customers... and a substantial amount of documentary evidence.
McCrudden testified on his own behalf. After deliberating
one day, the jury acquitted him.

And now we get the answer to why he's got a grudge against Dan
Driscoll, the primary person McCrudden threatened to kill.
Remember that MAAM withdrew
their NFA membership in December 1997 and their
registration with the Commission in December 1999.

Read below:

In August 2004, McCrudden and MAAM again applied for
registration with the Commission; [but
the] NFA responded by issuing a Notice of Intent to
Deny the applications [because of the allegations
above]...

McCrudden submitted a pro se response, in which he
challenged the allegation that he knowingly overstated the Fund's
net asset value and emphasized that the USDC had
acquitted him in a federal criminal action raising the same
allegations...

[McCrudden tried to dismiss the notice using the Double
Jeopordy clause...]

NFA attempted to call NFA official Dan Driscoll and
McCrudden as witnesses... when counsel for NFA sought to cross
examine McCrudden, he refused to answer, despite a warning from
the Chairman of the Subcommittee...

On June 10, 2005, the Subcommittee issued its Final Order
Denying Registration...

On appeal, McCrudden argues that NFA's decision rests on
an unprecedented and unduly expansive interpretation of the
statutory language "other good cause." He also claims that NFA
denied him fundamental fairness by failing to grant him the
procedural protections available in a criminal proceeding; that
the record does not support NFA's findings; and that NFA failed
to consider his mitigation and rehabilitation evidence. Finally,
he claims that denial of the applications is an excessive and
oppressive sanction for the conduct established on
record.

So there you have it. Vincent appears to have a grudge against
Driscoll because he believes he unfairly would not let him
register as a trader again.
Look how many times he tried and you can see how the
grudge festered.